lūcū̆brātĭo, ōnis, f. [lucubro], a working by lamp-light, night-work, nocturnal study, lucubration.
I Lit.: per hiemem lucubratione haec facito, Cato R. R. 37: lucubrationes detraxi, Cic. Div. 2, 68, 142: ista sunt tota commenticia, vix digna lucubratione anicularum, hardly worth the evening gossip of old women , id. N. D. 1, 34, 94: cannabis lucubrationibus decorticata purgatur, Plin. 19, 9, 56, § 174: est enim lucubratio, quoties ad eam integri ac refecti venimus, optimum secreti genus, Quint. 10, 3, 27: et vigilandae noctes, et fuligo lucubrationum bibenda, id. 11, 3, 23. —
II Transf., any thing done or composed at night, night-work, lucubration : perire lucubrationem meam nolui, i. e. epistolam noctu scriptam, Cic. Fam. 9, 2, 1.—As title of a work by Bibaculus, Plin. praef. § 24.